C# 启用或禁用网卡 2种方法

方法一、
//禁用 SetNetworkAdapter(False)

//启用 SetNetworkAdapter(True)

//添加引用system32\shell32.dll

private static bool SetNetworkAdapter(bool status)

{

const string discVerb = "停用(&B)"; // "停用(&B)";

const string connVerb = "启用(&A)"; // "启用(&A)";

const string network = "网络连接"; //"网络连接";

const string networkConnection = "VMware Network Adapter VMnet1"; // "本地连接"

string sVerb = null;

if (status)

{

sVerb = connVerb;

}

else

{

sVerb = discVerb;

}

Shell32.Shell sh = new Shell32.Shell();

Shell32.Folder folder = sh.NameSpace(Shell32.ShellSpecialFolderConstants.ssfCONTROLS);

try

{

//进入控制面板的所有选项

foreach (Shell32.FolderItem myItem in folder.Items())

{

//进入网络连接

if (myItem.Name == network)

{

Shell32.Folder fd = (Shell32.Folder)myItem.GetFolder;

foreach (Shell32.FolderItem fi in fd.Items())

{

//找到本地连接

if ((fi.Name == networkConnection))

{

//找本地连接的所有右键功能菜单

foreach (Shell32.FolderItemVerb Fib in fi.Verbs())

{

if (Fib.Name == sVerb)

{

Fib.DoIt();

return true;

}

}

}

}

}

}

}

catch (Exception e)

{

Console.WriteLine(e.Message);

return false;

}

return true;

}

==================================================================================
方法二 、

c#中禁用和开启网卡
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Management;
using System.Collections;

namespace NetWorkControl
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
NetWorkList();
}

/// <summary>
/// 网卡列表
/// </summary>
public void NetWorkList()
{
string manage = "SELECT * From Win32_NetworkAdapter";
ManagementObjectSearcher searcher = new ManagementObjectSearcher(manage);
ManagementObjectCollection collection = searcher.Get();
List<string> netWorkList = new List<string>();

foreach (ManagementObject obj in collection)
{
netWorkList.Add(obj["Name"].ToString());

}
this.cmbNetWork.DataSource = netWorkList;

}

/// <summary>
/// 禁用网卡
/// </summary>5
/// <param name="netWorkName">网卡名</param>
/// <returns></returns>
public bool DisableNetWork(ManagementObject network)
{
try
{
network.InvokeMethod("Disable", null);
return true;
}
catch
{
return false;
}
}

/// <summary>
/// 启用网卡
/// </summary>
/// <param name="netWorkName">网卡名</param>
/// <returns></returns>
public bool EnableNetWork(ManagementObject network)
{
try
{
network.InvokeMethod("Enable", null );
return true;
}
catch
{
return false;
}

}

/// <summary>
/// 网卡状态
/// </summary>
/// <param name="netWorkName">网卡名</param>
/// <returns></returns>
public bool NetWorkState(string netWorkName)
{
string netState = "SELECT * From Win32_NetworkAdapter";
ManagementObjectSearcher searcher = new ManagementObjectSearcher(netState);
ManagementObjectCollection collection = searcher.Get();
foreach (ManagementObject manage in collection)
{
if (manage["Name"].ToString() == netWorkName )
{
return true;
}
}
return false;
}

/// <summary>
/// 得到指定网卡
/// </summary>
/// <param name="networkname">网卡名字</param>
/// <returns></returns>
public ManagementObject NetWork(string networkname)
{
string netState = "SELECT * From Win32_NetworkAdapter";

ManagementObjectSearcher searcher = new ManagementObjectSearcher(netState);
ManagementObjectCollection collection = searcher.Get();

foreach (ManagementObject manage in collection)
{
if (manage["Name"].ToString() == networkname)
{
return manage;
}
}

return null;
}

private void btnStart_Click(object sender, EventArgs e)
{
if (NetWorkState(this.cmbNetWork.SelectedValue.ToString()))
{
if (!EnableNetWork(NetWork(this.cmbNetWork.SelectedValue.ToString())))
{
MessageBox.Show("开启网卡失败!");
}
else
{
MessageBox.Show("开启网卡成功!");
}
}
else
{
MessageBox.Show("网卡己开启!");
}

NetWorkList();
}

private void btnStop_Click(object sender, EventArgs e)
{

if (NetWorkState(this.cmbNetWork.SelectedValue.ToString()))
{
if (!DisableNetWork(NetWork(this.cmbNetWork.SelectedValue.ToString())))
{
MessageBox.Show("禁用网卡失败!");
}
else
{
MessageBox.Show("禁用网卡成功!");
}
}
else
{
MessageBox.Show("网卡己禁用!");
}

NetWorkList();
}

}
}